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damaskus [11]
3 years ago
14

Which best describes?

Biology
1 answer:
Ulleksa [173]3 years ago
7 0

Answer:

I think it might be the last response, since it takes about what some say, 550 million years...

It might be wrong... But take it into consideration that it might be the right answer.

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Explain the differences between a point mutation and a frameshift mutation.
Kisachek [45]

a point mutation only mutates and changes that particular spot in the DNA strand while a frameshift changes the whole strand by moving the bases either one forward or backward

6 0
3 years ago
The mutation shown in line D of the figure above is a
Mazyrski [523]

Answer:I think it’s c

Explanation:

6 0
3 years ago
In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
Hypocalcemia causes weak cardiac contractions because:
alexdok [17]
Hypocalcemia is the medical condition with<span> low calcium levels in the blood serum.
</span><span>Low calcium levels blood can weaken the bones, create kidney stones, and interfere with the way your heart and brain works.</span>
The effects of Hypocalcemia on the heart are w<span>eak contractions, arrhythmias, and low BP., weak thready pulse. 
</span><span>Hypocalcemia causes weak cardiac contractions because it increases the </span>resting membrane potential and the  excitability of the cardiac muscle.
4 0
3 years ago
Years ago, doctors would prescribe antibiotics for many symptoms of a common cold. Today, it is much more difficult to get a pre
ratelena [41]
Because we now know that antibiotics can only treat bacterial infections. this includes strep throat and other things such as urinary infections. They won't treat viruses. You can treat the symptoms, but you can not treat the virus. 
(Your doctor will also give you a prescription to prevent infection.)
7 0
4 years ago
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